Truck.



PATBNTED APR. 16, 1907.'

G. A. BRDWNE.

TRUCK; I

GEORGE ALBERT RRowNE, OR TAOOMA, WASHINGTON.

TRUCK.

Specication of Letters Patent.

Patented April 16, 1907.

Application filed December 19,1905. Serial No.. 292,411.

To @ZZ whom it may concern.-

Be it known that I, GEORGE ALBERT BROWNE, of Tacoma, Pierce county,Washington, have invented certain new and useful Improvements in Trucks,of which the following is a specification.

My invention relates to trucks lused for transferring lumber or anyother material from place to place; and the object of my invention istol provide means for easily and quickly raising the load to relieve thetruck and allow it to be used for successive loads.

Other objects of my invention will appear from the following detaileddescription.

The invention consists generally in various constructions, all ashereinafter described, and particularly pointedout in the claims.

ln the accompanying drawings, Figure 1 is a side elevation of alumber-truck embodying my invention. Fig. 2 is an end view of the same.Fig. 3 is a sectional view on ithe line y y of Fig. 4. Fig. 4 is asectional view on the line m a: of Fig. 3.

In the drawings, 2 represents the side rails or timbers of thetruck-frame, having the axle 3 and carrying-wheels 4. Between these siderails are cross timbers or bars 5 at suitable intervals.

6 is a head-block resting transversely upon the rails 2 and providedwith guide-brackets 7, which depend between the rails 2 and allowvertical movement of the block 6, but prevent it from moving lengthwise.A series of cross-pieces 8 are preferably provided resting upon therails 2 at suitable intervals and of substantially the same height asthe vertically-movable head-block 6. The crosspieces 8l may be fixed onthe truck-rails, if preferred. The head-block 6 is provided with acentrally-arranged depending hanger 9, which is vertically slidable in aslot 10, provided in the cross-beam 5, or in place of having this slot10 bars may be provided having a space between them which extendsentirely across the truck. This, however, is a mere detail ofconstruction and is an unimportant feature of the device. Upon each sideof the cross-beam 5 and secured thereto .l provide angle-bar-iron plates11, and supraised or lowered. The edge of the cam 14 is arranged to bearon the lower end of the hanger 9, and when the shaft 15 is revolved inone direction the pressure of the cam on the lower end of the hanger 9will raise it and the head-block 6 land lift the load off the truck. Thecam 14 is preferably provided with a notch 17, and a latch 18, pivotedat 19 in said brackets, is adapted to enter said notch and has aweighted end 20, which causes the automatic depression of the latch andits engagement with the recess to lock the cam in its raised position.12 and the cam and latch mechanism carried thereby are readily removablefrom the supporting angle-plates 11 to allow the lifting device to beused on one truck and then easily and quickly transferred to anothertruck, and thereby the necessity of having one of these lifting devicesfor each truck is avoided.

ln Fig. 1 have shown a load of lumber on the truck and Ordinary woodenhorses 21 and 22 arranged at each end and adapted to support the load oflumber whenraised. In an ordinary two-wheeled truck of this kind l amable to utilize in connection with my device the frame. of the truck asa lever to aid in raising the load. For example, when the cam isoscillated and the right-hand end of the load raised the' correspondingend of the truck will be depressed,`and the horse 21 having been placedunder the lumber the depression of the right-hand end of the truck willcause a corresponding elevation of the of which said shaft is rocked andsaid cam.

The brackets,

opposite end and lift the lumber at that end a sufficient distance toallow the horse 22 to be placed beneath it. In this way l compound theleverage, utilizing the side rails of the truck to aid in lifting thelumber sufliciently' to allow the horse to be placed beneath it.

By means of this device the lumber, pieces of timber, or anyother'material can be easily and. quickly transferred from the truck tothe horses and one truck used for successive loads, thereby permittingthe handling of a large amount of material with a comparatively smallnumber of trucks. and described this raising device applied to one endonly ofthe truck-frame; but it will be understood that it can be used on.both ends, if desired, and thisarrangement will be necessary where afour-wheel truck is employed.

l claim as my invention- 1. The combination with a truck-frame l haveshown i TOO IIO

Q Y Y 850,562

having a centrally-arranged axle and carrying-wheels, said frame beingadapted to support lumber or other material with the ends of the loadprojecting beyond the ends of said frame, of means mounted in one end ofsaid frame for raising one end of the load off the truck to allow asupport to be placed under its projecting end, the frame of said truckbeing utilized as a lever to lift the opposite projecting end of theload and allow a support to be placed under that end, substantially asdescribed.

2. The combination, with a truck-frame having a centrally-arranged axleand carrying-wheels, and a vertically-movable block on one end7 saidtruck being adapted to support a load of material having ends projectingbeyond the ends of said truck, of means mounted on said truck andadapted to engage said block to elevate the same and allow a support tobe placed under one of the projecting ends of the load and the frame ofthe truck being utilized as a lever to lift the opposite end of the loadto allow a support to be placed under that end, substantially asdescribed.

3. The combination with a two-wheeled truck, of a vertically-movablehead-block, an oscillating cam arranged to lift said headblock andhaving a notch or recess, and a latch adapted to drop into said recessand lock said cam in its raised position.

4. The combination7 with a two-wheeled truck having a vertically-movableblock and adapted to support a load of material with its end projectingbeyond the ends of said truck, of means detachably mounted on said truckand adapted to engage said block to elevate the same and one end of theload a suificient distance to allow a support to be placed on the groundunder that end, the frame of the truck being utilized as a lever toelevate the opposite end of the load and permit a support to be placedon the ground under that end, substantially as described.

5. The combination with a truck having side rails and a cross bar orbeam connecting them, of a head-block, a hanger secured to said blockand depending through a slot provided in said cross-beam,A angle-platessecured to said cross-beam, and a cam having a curved surface to engagesaid hanger and detachably supported on said plates7 substantially asdescribed.

. 6. The combination with a truck having side rails and a cross-beam, ofa head-block resting on said rails and havinga hanger depending througha slot provided in said beam, brackets detachably supported on saidbeam, a cam carried by said brackets and arranged to engage said hanger,and a shaft whereon said cam is mounted, substantially as described.

7. The combination with a truck, of a vertically-movable head-blockmounted thereon,

brackets detachably supported on said truck, y

a cam carried by said brackets and arranged to lift said head-block, andmeans for operating said cam, substantially as described.

8. The combination with a truck-frame having a centrally-arranged axleand carrying-wheels, of a vertically-movable headblock provided at oneend of said truck, and a cam device arranged to raise said headblock tolift the load, substantiallyas described.

9. The combination with a truck-frame having centrally-arranged axle andcarryingwheels, of a head-block and a cam device mounted on said frameand arranged to lift said head-block to lift the load on the truck,

and said cam device being detachable from l GEORGE ALBERT BROWNE.

Witnesses:

THos. D. HITCHCOCK, EMMETT N. PARKER.

